EP1184837B1 - Generating device for feedback vibrations - Google Patents

Abstract

A drum feedback unit (1) receives (4) sound (20) from the acoustic drum (2), filters (5) and amplifies (6) it to drive a vibration generator (7) directed towards the drummer.

Description

The present invention relates to a device for generating a vibration feedback. In particular, the present invention relates a device for generating a vibration feedback from an (acoustic Music) bass drum or an (acoustic music) bass drum a musician.

For musicians who play a musical instrument, its sound body is not in direct physical contact with the musician, for example Musical instruments that are played with rackets, such as drums, timpani, Xylophones or other percussion instruments, the problem often arises that she has no feeling for her musical instrument or that of her Musical instrument generated sound wave generating vibrations have there they have no direct physical contact with the musical instrument's body of sound to have. This problem also increases when the musical instrument in question together with other musical instruments in a music group is played because the sound waves emitted by the musical instrument in question also go down in the noise level of the other instruments. In particular Drum players have great difficulty from their acoustic Bass drums and / or acoustic bass timpani produced low-frequency Perceive sound waves.

In the patent US 5744738 a rigid, mechanical Frame construction described on which drum components as Drums and cymbals as well as a drum chair can be attached in such a way that the musician receives the vibrations emitted by the drum components can feel about the frame construction and the drum chair. Even though such a frame construction noticeably the problem described above can improve, it has the disadvantage that it is a considerable size and has a considerable weight, which adversely affects transportation the frame structure affects, and that the erection and adjustment of the Frame construction is associated with a fairly large effort.

It is an object of this invention, a new and better device to generate vibration feedback from a bass drum or to suggest a timpani to a musician, which in particular does not have the above disadvantages of the prior art.

According to the present invention, this goal is particularly achieved through the elements of the independent claims. More beneficial Embodiments also go from the dependent claims and the description.

This goal is achieved by the vibration feedback device according to the invention achieved in particular by having an input module for receiving sound waves from the bass drum or the Bass timpani and to convert these sound waves into corresponding signals, and / or to receive signals which correspond to these sound waves, comprises that it is a filter module connected to the input module, the Filter frequency is adjustable by the musician to generate a filtered Signals from the converted and / or received signals, that they have an amplifier module to amplify the filtered signal and that it has a vibration driver connected to the amplifier module to generate vibrations from the amplified, filtered signal includes. A similar device, but without adjustable filters, is described in document US-A-5 866 836. The advantage of such a design mobile and portable vibration feedback device in particular in being inexpensive to run and with little effort can be transported, installed and operated. One designed in this way Vibration feedback device can in particular without any special additional mechanical adjustment effort with all types and Sizes of conventional bass drums and bass timpani are used because the filter frequency of the filter module by the musician to the frequencies the one given by the respective bass drum or timpani Sound waves can be adjusted, in particular on the musical instruments, that means on the bass drum or the bass timpani, no changes must be made.

The filter module is preferably a parametric filter module, in particular a bandpass filter with an essentially in the range between 50Hz and 250Hz adjustable filter frequency and with adjustable slope. The The advantage of such an adjustable bandpass filter is in particular that that the vibration feedback device by the musician in terms of frequency be adapted to the bass drum or timpani in question can.

The vibration driver is preferably on a seat device, For example, a drum chair attached to the musician sitting on it senses the vibrations generated by the vibration driver effectively. In In one embodiment, the vibration driver is attached to a platform that a musician on it by the vibration driver generated vibrations effectively.

In one embodiment variant, the input module comprises one Receiver for receiving electrical signals or radio signals. The advantage of such a receiver is that an external microphone outside the device, for example in the bass drum or - Timpani is attached, using a cable, to pass on the microphone generated electrical signals with the input module of the device can be connected, or that an external radio microphone is contactless can be connected to the input module of the device.

In one embodiment variant, the input module, the filter module, the amplifier module and the vibration driver in one Executed housing and for example on the above-mentioned seat device or platform attached. This variant has in particular the Advantage that a combination product consisting of the vibration feedback device and the seat device, respectively the platform on which the vibration feedback device is attached, optimal in terms of geometric dimensions and effective vibration transmission can be executed.

In one embodiment variant, the input module, the filter module and the amplifier module executed in a common housing and the vibration driver via a cable connection to the amplifier module connected. This variant has the particular advantage that the Vibration driver as effectively as possible on a seat device or Platform can be attached while the housing, with the input module, the filter module and the amplifier module, for the musician for example easy to use within easy reach or directly in or near the bass drum or Bass timpani can be positioned.

The input module and the filter module are in one embodiment variant executed in a common first housing and the amplifier module and the vibration driver in a common second housing executed, the filter module and the amplifier module for example with each other via a cable connection or a contactless interface are connected. This embodiment variant has the particular advantage that the vibration feedback from one bass drum or timpani to several Musicians can be guided by multiple second casings, each with one Amplifier module and a vibration driver, with a common one first housing, connected to the input module and the filter module become.

The input module preferably comprises a preamplifier module with one or more preamplifiers for preamplification and summation of the converted and / or received signals and the input module an overload control indicator to control the level of the pre-amplified and summed signal.

Figur 1 zeigt ein Blockdiagramm, welches schematisch eine Vorrichtung zur Erzeugung einer Vibrations-Rückkopplung mit drei verschiedenen alternativen oder sich ergänzenden Varianten zum Empfang von Schallwellen, die von einer Basstrommel oder einer Basspauke abgegebenen werden, illustriert.

Figur 2a zeigt ein Blockdiagramm, welches schematisch eine Ausführungsform der Vibrations-Rückkopplungsvorrichtung mit einem gemeinsamen Gehäuse illustriert.

Figur 2b zeigt ein Blockdiagramm, welches schematisch eine Ausführungsform der Vibrations-Rückkopplungsvorrichtung illustriert, in welcher der Vibrationstreiber über eine Kabelverbindung mit den anderen, in einem gemeinsamen Gehäuse ausgeführten Modulen verbunden ist.

Figur 2c zeigt ein Blockdiagramm, welches schematisch eine Ausführungsform der Vibrations-Rückkopplungsvorrichtung in einem ersten und einem zweiten Gehäuse illustriert, die über eine Kabelverbindung miteinander verbunden sind.

Figur 2d zeigt ein Blockdiagramm, welches schematisch eine Ausführungsform der Vibrations-Rückkopplungsvorrichtung in einem ersten und einem zweiten Gehäuse illustriert, die über eine kontaktlose Schnittstelle miteinander verbunden sind.

Figur 3a zeigt eine schematische Ansicht eines Vibrationstreibers, der an einer Sitzvorrichtung befestigt ist.

Figur 3b zeigt eine schematische Ansicht eines Vibrationstreibers, der an einer Plattform befestigt ist.

Figur 4 zeigt einen elektronischen Schaltungsplan einer möglichen Ausführung der Vibrations-Rückkopplungsvorrichtung.

An embodiment of the present invention is described below using an example. The example of the execution is illustrated by the following enclosed figures:

FIG. 1 shows a block diagram which schematically illustrates a device for generating a vibration feedback with three different alternative or complementary variants for receiving sound waves which are emitted by a bass drum or a bass drum.

FIG. 2a shows a block diagram which schematically illustrates an embodiment of the vibration feedback device with a common housing.

FIG. 2b shows a block diagram which schematically illustrates an embodiment of the vibration feedback device, in which the vibration driver is connected via a cable connection to the other modules which are embodied in a common housing.

FIG. 2c shows a block diagram which schematically illustrates an embodiment of the vibration feedback device in a first and a second housing, which are connected to one another via a cable connection.

FIG. 2d shows a block diagram which schematically illustrates an embodiment of the vibration feedback device in a first and a second housing, which are connected to one another via a contactless interface.

FIG. 3a shows a schematic view of a vibration driver which is attached to a seat device.

Figure 3b shows a schematic view of a vibration driver attached to a platform.

FIG. 4 shows an electronic circuit diagram of a possible embodiment of the vibration feedback device.

In FIG. 1, reference number 1 refers to a device to generate a vibration feedback from a bass drum 2 or a timpani 2 to one, or possibly several, musicians who Device in this text also as a vibration feedback device 1 referred to as. The vibration feedback device 1 shown in FIG is shown schematically, comprises an input module 4 with three different Mechanisms for receiving sound waves 20 by the Bass drum or timpani 2 are given, respectively to receive Signals 30 that correspond to these sound waves 20. One of the three Different mechanisms can be used as alternatives in different Variants of the vibration feedback device 1 used , but there are also design variants of the vibration feedback device 1 possible, in which several of these three various mechanisms, complementary, in a vibration feedback device 1 can be used.

The first mechanism involves an electroacoustic transducer, in particular a microphone 3a, which is in the input module 4 of the vibration feedback device 1 is installed and that is suitable; that of the Bass drum or timpani 2 received sound waves 20 and to convert into electrical signals that correspond to these sound waves.

The second mechanism comprises a connector 11, for example a plug socket or a receiver plug that goes into the input module 4 of the vibration feedback device 1 is installed and via which an electro-acoustic transducer, the microphone 3b, or a vibration sensor 3b, by means of a connecting cable 12 to the input module 4 of the vibration feedback device 1 can be connected so that electrical signals emitted by the bass drum or timpani 2 Sound waves, or vibrations, correspond, from the microphone 3b, respectively from the vibration sensor 3b to the input module 4.

The third mechanism includes a radio receiver 42 which is shown in FIG the input module 4 of the vibration feedback device 1 is installed and by means of which radio signals 30 emitted by the radio microphone 3c and the sound waves emitted by the bass drum or timpani 2, resp. vibrations, correspond, receive and as electrical Signals can be forwarded.

As is shown in Figure 1, the of the Bass drum or timpani 2 received sound waves corresponding received or converted electrical signals in the input module 4 to the Preamplifier module 41 forwarded. The preamplifier module 41 includes one or more preamplifiers, each according to the signal strength of the relevant electrical input signal are designed. In the embodiment FIG. 4 shows, for example, a microphone preamplifier 413 and a Line preamplifier 414, for example for connecting the electrical Signals from a bass guitar. The gain of this preamplifier to control the electrical input signal concerned can be adjusted by the musician with a preamplifier 412. According to the embodiment shown in Figure 4, the output signals the preamplifier in the preamplifier module 41 sums up and visual control of the modulation of the overload control display 411 fed.

The output signal of the preamplifier module 41, respectively Summed output signals of the preamplifier (s) 413, 414 are on the filter module 5 is forwarded, as shown in FIGS. 1 and 4. The Filter module 5 is preferably a bandpass filter, its filter frequency and Steepness from the musician by means of the filter frequency regulator 51, or respectively of the filter slope regulator 52 can be set. Because the fundamental frequency the bass drum or timpani 2 in an approximate range from 80 Hz to 90 Hz, the bandpass filter of the filter module 5 can be designed for example be that the filter frequency is essentially in the range of 50 Hz to 150 Hz is adjustable. With an adjustable range of filter frequency in in the range from 50 Hz to 250 Hz this can also be done Bass signal, such as an electric bass guitar, through the filter module 5 happen, so in addition to the vibration feedback from the Bass drum or bass timpani 2 also a vibration feedback from the bass can be generated. In one embodiment variant, it is also possible in each case a preamplifier of the preamplifier module 41 has a separate, individually adjustable one Assign filter module 5.

The signal filtered by the filter module 5, which essentially includes those frequency components of the unfiltered signal that are used for generation the vibration feedback will be used, as in the 1 and 4 is shown, from the filter module 5 to the amplifier module 6 directed and reinforced there. The signal strength of that applied to the amplifier module 6 The musician can use the signal strength control to input the signal 62 can be set. The one determined by the signal strength controller 62 Modulation of this input signal can, as is shown in FIG. 4, controlled by the musician using the level control display 61 become. By adjusting the signal strength of the input signal to the Amplifier module 6 by means of the signal strength controller 62, the power of the amplified output signal of the amplifier module 6 determined. The amplifier module For example, 6 is designed to have a power of 50W can give a load impedance of 4Ω.

As illustrated in Figure 1, the output signal of the amplifier module 6 forwarded to the vibration driver 7. By hiring the signal strength of the input signal applied to the amplifier module 6 by means of the signal strength controller 62, the vibration strength of the Vibration driver 7 generated vibration feedback determined.

As is schematically illustrated in FIGS. 3a and 3b, the Vibration driver 7 on a seat device 8 or on a platform 9, attached so that a musician sitting on the seat device 8, for example a drum chair, or standing on the platform 9, by the Vibration driver 7 feels vibrations through his body. The Vibration feedback device 1 thus enables a musician To perceive vibrations, respectively structure-borne sound waves, that of a Bass drum or a bass drum 2 correspond to the sound waves emitted. The vibration driver 7 is, for example, a conventional vibration driver 7, as used in cinemas or cars, for example a vibration driver PSM 600 (4Ω, 50W) from Aura. In another embodiment variant the vibration driver 7 designed so that it by a musician suitable carrying means on his body or on a part of the body, can be worn that the generated by the vibration driver 7 Feels vibrations on his body. Because in the last one Design variant the transmission of vibrations directly to the body takes place and the vibrations not via a seat device 8 or a platform 9 must be transmitted, the amplifier module 6 can be significant for one smaller output power can be dimensioned. Feeding the device 1, or the various components and modules of the device 1, takes place by means of a feed module, for example a feed module for the Direct connection to the power grid, which together with other components and Modules of the device 1 in a common housing or in a separate one Housing is installed.

FIGS. 2a, 2b, 2c and 2d show different design variants of the vibration feedback device 1, which illustrates various Arrangements of components and modules of the vibration feedback device 1 concern. In the embodiment variant according to FIG. 2a are the input module 4, the filter module 5, the amplifier module 6 and the Vibration driver 7 in a common housing 10, or on a common carrier 10, executed and for example on the above-mentioned Seat device 8 or platform 9 attached. In the variant According to FIG. 2b, the input module 4, the filter module 5 and the Amplifier module 6 in a common housing 10, or on a common carrier 10, executed and the vibration driver 7 is a Cable connection 67 connected to the amplifier module 6. In the design variants according to FIGS. 2c and 2d, the input module 4 and the filter module 5 in a common first housing 10 a, respectively a common first carrier 10a, and the amplifier module 6 and the vibration driver 7 are in a common second housing 10 b, respectively on a common second carrier 10b, wherein the Filter module 5 and the amplifier module 6 in the embodiment variant according to 2c are connected via the cable connection 56a, and wherein Filter module 5 and the amplifier module 6 in the embodiment variant according to 2d are connected to one another via the contactless interface 56b. The contactless interface 56b is, for example, a radio interface, which by means of a radio transmitter in the housing 10a, or on the carrier 10a, and a corresponding radio receiver in the housing 10b, respectively on the carrier 10b. In an alternative variant the contactless interface 56b is designed as a bidirectional radio interface, for example as a Bluetooth radio interface.

After a microphone 3a, 3b, 3c or a vibration sensor in the or was positioned on the bass drum or timpani 2, respectively Microphone 3a has been aligned with the bass drum or timpani 2, the Vibration feedback device 1 as follows for generating the Vibration feedback from the bass drum or timpani 2 to the musician can be set. The slope of the Filter module 5, for example, set maximum and while the bass drum or bass timpani 2 is actuated, is by means of the filter frequency controller 51st the sound waves emitted by the bass drum or bass timpani 2 corresponding signal "searched" by the filter frequency of the filter module 5 is set so that this signal is as good as possible via the vibration driver 7 can be felt. In this hiring process, the Override control display 411 are taken to help, using of the preamplification controller 412 the amplification of the relevant preamplifier is reduced in each case so that overdriving is avoided. After this an optimal vibration feedback has been set, the slope of the filter module 5 can be reduced, so that for example that too Signal from an additional bass instrument, for example a bass guitar, can pass through the filter module 5 and to the vibration feedback contributes.

List of reference numbers

1

contraption

2

Bass drum or timpani

3a

built-in microphone

3b

wired microphone

3c

wireless microphone

4

input module

5

filter module

6

amplifier module

7

vibration drive

8th

Seat device (drum chair)

9

platform

10

casing

10a

first housing

10b

second housing

11

plug connection

12

connection cable

20

sound waves

30

radio signals

41

preamplifier

42

radio receiver

51

Filter frequency controller

52

Filter slope regulator

56a

cable connection

56b

contactless interface

61

Aussteuerungskontrollanzeige

62

Signal Knob

67

cable connection

70

vibrations

411

Override indicator

412

Preamp

413

microphone preamplifier

414

Leitungsvorverstärker

Claims (10)

1. Device (1) for generating vibration feedback from a bass drum or a bass kettledrum (2) to a musician comprising
      an input module (4) for receiving sound waves (20) from the bass drum or the bass kettledrum (2) and for converting these sound waves (20) into corresponding signals, and/or for receiving signals corresponding to these sound waves (20),
      a filter module (5), connected to the input module (4), for generating a filtered signal from the converted and/or received signals,
      an amplifier module (6) for amplifying the filtered signal, and
      a vibration driver (7), connected to the amplifier module (6), for generating vibrations perceptible to the musician from the amplified, filtered signal, the device being characterised in that the filter frequency of the filter module is adjustable by the musician.
2. Device according to claim 1, characterised in that the filter module (5) is a band-pass filter with a filter frequency substantially adjustable in the range of 50 Hz to 250 Hz and with an adjustable slope.
3. Device according to one of the claims 1 or 2, characterised in that the vibration driver (7) is fixed to a seat device (8) such that a musician sitting thereon perceives the vibrations generated by the vibration driver (7).
4. Device according to one of the claims 1 or 2, characterised in that the vibration driver (7) is fixed to a platform (9) such that a musician located thereon perceives the vibrations generated by the vibration driver (7).
5. Device according to one of the claims 2 to 4, characterised in that the input module (4) comprises a receiver for receiving electrical signals and/or radio signals.
6. Device according to one of the claims 2 to 5, characterised, in that the input module (4), the filter module (5), the amplifier module (6) and the vibration driver (7) are executed in a common housing (10).
7. Device according to one of the claims 1 to 5, characterised in that the input module (4), the filter module (5), and the amplifier module (6) are executed in a common housing (10), and the vibration driver (7) is connected to the amplifier module (6) via a cable connection (67).
8. Device according to one of the claims 1 to 5, characterised in that the input module (4) and the filter module (5) are executed in a common first housing (10a), and in that the amplifier module (6) and the vibration driver (7) are executed in a common second housing (10b).
9. Device according to claim 8, characterised in that the filter module (5) and the amplifier module (6) are connected together via a contactless interface (56b).
10. Device according to one of the claims 1 to 9, characterised in that the input module (4) comprises a pre-amplifier module (41) with one or more pre-amplifiers for pre-amplification and summation of the converted and/or received signals, and in that the input module (4) comprises an overload control display (411) for control of the level of pre-amplified and added up signals.

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